package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 统一的异常处理
 *
 * @author: Mr.ling
 * @data: 2022/7/5
 * @apiNote
 */
@Slf4j
@RestControllerAdvice("com.atguigu.gulimall.product.controller") // ControllerAdvice + ResponseBody
public class GulimalExceptionControllerAdvice {

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handException(MethodArgumentNotValidException e) {
        log.error("数据校验出现问题：{}，异常类型：{}", e.getMessage(), e.getClass());
        BindingResult result = e.getBindingResult();
        Map<String, String> map = new HashMap<>();
        result.getFieldErrors().forEach(item -> {
            map.put(item.getField(), item.getDefaultMessage());
        });
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(), BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data", map);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handException(Throwable throwable) {
        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(), BizCodeEnum.UNKNOWN_EXCEPTION.getMsg());
    }
}
